Frog Dissection Lab
Dissection Questions:
1. What did you do?
In this lab we dissected a frog in order to make sense of it's adaptations and to compare human anatomy to frog anatomy.
2. What systems did you investigate?
We investigated the skeletal system, muscular system, circulatory system, respiratory system, digestive system, reproductive system, and the nervous system.
3. What is the Phylum and Class the frog belongs to?
The frog is a member of the phylum chordata because of a gristly rod, the notochord which forms along the dorsal mid-line of the frog embryo.
4. What are the characteristics of the Phylum?
They are bilaterally symmetrical and triploblastic.
Chordates are coelomate and show an organ system level of organisation.
They have the characteristic notochord, dorsal nerve cord, pharyngeal slits.
Also, they have a post-anal
In this phylum, the nervous system is dorsal, hollow and single.
The heart is ventral, with a closed circulatory system.
The habitat of these animals is widespread. So we can find them in the marine environment, fresh waters as well as terrestrial environments.
5. What are the characteristics of the Class?
Frogs are classified as amphibians.
cold-blooded animals, meaning they do not have a constant body temperature but instead take on the temperature of their environment.
They have moist, scaleless skin that absorbs water and oxygen, but that also makes them vulnerable to dehydration (loss of bodily fluids).
6. Write about 3 things you learned about how the frog body systems compare to humans.
I learned that frog's can breathe through their skin which is why they have small lungs, while humans can't and have bigger lungs (circulatory system). I learned that frogs only have one bone in the lower leg, while humans have two; the tibia and fibula (skeletal system). And I learned that frogs have three lobes, while humans have four lobes (digestive system).
7. Write about your most favorite and least favorite thing about the dissection.
I enjoyed learning about the anatomy, but I don't like dissections in general.
8. What else do you want to know or are still curious about?
I still wonder how frogs have adapted to their environments from their ability to breath through their skin to their green color that helps them camouflage.
Frog pictures:
Reflection:
This lab was very informative about both the frogs and human anatomy and I learned tons of cool new facts, along with a good understanding of the body systems. I personally don't enjoy dissections and so it was kind of hard for me. But I still did learn from it. A skill my partner and I both utilized well is conscientious learning, specifically time management wise. Because we were always on top of what were gonna do each day and how much work, and to make things faster Jena did the dissecting and I wrote in both packets while we both came up with answers for the questions. Although I felt like my job wasn't enough since my partner was the one who really got to see and get an understanding of the frogs anatomy. And so I felt like I didn't really collaborate enough.